Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃-ZrO₂/SAPO-34 Tandem Catalyst.

ABSTRACT: An original kinetic model is proposed for the direct production of light olefins by hydrogenation of CO₂/CO (CO_x) mixtures over an In₂O₃-ZrO₂/SAPO-34 tandem catalyst, quantifying deactivation by coke. The reaction network comprises 12 individual reactions, and deactivation is quantified with expressions dependent on the concentration of methanol (as coke precursor) and H₂O and H₂ (as agents attenuating coke formation). The experimental results were obtained in a fixed-bed reactor under the following conditions: In₂O₃-ZrO₂/SAPO-34 mass ratio, 0/1-1/0; 350-425 °C; 20-50 bar; H₂/CO_x ratio, 1-3; CO₂/CO_x ratio, 0-1; space

SUBMITTER: Portillo A 

PROVIDER: S-EPMC10828986 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature